TNSN06119A1 - Underbalanced well drilling and production - Google Patents

Underbalanced well drilling and production

Info

Publication number
TNSN06119A1
TNSN06119A1 TNP2006000119A TNSN06119A TNSN06119A1 TN SN06119 A1 TNSN06119 A1 TN SN06119A1 TN P2006000119 A TNP2006000119 A TN P2006000119A TN SN06119 A TNSN06119 A TN SN06119A TN SN06119 A1 TNSN06119 A1 TN SN06119A1
Authority
TN
Tunisia
Prior art keywords
production
fluid
drilling
rotating head
alternate line
Prior art date
Application number
TNP2006000119A
Other languages
French (fr)
Inventor
Gavin Humphreys
Original Assignee
Stena Drilling Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stena Drilling Ltd filed Critical Stena Drilling Ltd
Publication of TNSN06119A1 publication Critical patent/TNSN06119A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/08—Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure
    • E21B21/085—Underbalanced techniques, i.e. where borehole fluid pressure is below formation pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/002—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables specially adapted for underwater drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/035—Well heads; Setting-up thereof specially adapted for underwater installations
    • E21B33/038—Connectors used on well heads, e.g. for connecting blow-out preventer and riser
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/08—Wipers; Oil savers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/08—Wipers; Oil savers
    • E21B33/085—Rotatable packing means, e.g. rotating blow-out preventers

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Steroid Compounds (AREA)

Abstract

Underbalanced production and drilling may be achieved by a system which uses a rotating head coupled to surface blowout preventer stack for fluid flow control. A casing connects these surface components to a subsea shutoff assembly with a pair of ram shear devices to cut off the string to the wellhead. Both the casing and an alternate line may be latched so that they may be released if necessary. The alternate line may provide fluid from the surface to the subsea shutoff assembly for purposes of varying the density of the returning mud. The rotating head may include a rubber packer to prevent upward flow of drilling fluid and production hydrocarbons and, at the same time, provide rotation to the drill string.
TNP2006000119A 2003-10-30 2006-04-24 Underbalanced well drilling and production TNSN06119A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/697,204 US7032691B2 (en) 2003-10-30 2003-10-30 Underbalanced well drilling and production
PCT/IB2004/004372 WO2005042917A1 (en) 2003-10-30 2004-10-25 Underbalanced well drilling and production

Publications (1)

Publication Number Publication Date
TNSN06119A1 true TNSN06119A1 (en) 2007-11-15

Family

ID=34550303

Family Applications (1)

Application Number Title Priority Date Filing Date
TNP2006000119A TNSN06119A1 (en) 2003-10-30 2006-04-24 Underbalanced well drilling and production

Country Status (10)

Country Link
US (3) US7032691B2 (en)
EP (3) EP1808569B1 (en)
AU (1) AU2004286103B2 (en)
BR (1) BRPI0416064A (en)
DK (3) DK1808569T3 (en)
EG (1) EG24344A (en)
ES (3) ES2393434T3 (en)
NO (2) NO338633B1 (en)
TN (1) TNSN06119A1 (en)
WO (1) WO2005042917A1 (en)

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US9033049B2 (en) * 2011-11-10 2015-05-19 Johnnie E. Kotrla Blowout preventer shut-in assembly of last resort
US9328575B2 (en) * 2012-01-31 2016-05-03 Weatherford Technology Holdings, Llc Dual gradient managed pressure drilling
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CA2871620C (en) * 2012-04-27 2017-01-03 Schlumberger Canada Limited Wellbore annular pressure control system and method using gas lift in drilling fluid return line
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US10294746B2 (en) * 2013-03-15 2019-05-21 Cameron International Corporation Riser gas handling system
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US9784088B2 (en) 2015-07-13 2017-10-10 Landmark Graphics Corporation Underbalanced drilling through formations with varying lithologies
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Also Published As

Publication number Publication date
ES2305892T3 (en) 2008-11-01
EP1700000A1 (en) 2006-09-13
ES2393434T3 (en) 2012-12-21
NO20160812L (en) 2006-07-28
EP2161404A2 (en) 2010-03-10
EP2161404B1 (en) 2012-08-29
US20090314544A1 (en) 2009-12-24
NO339557B1 (en) 2017-01-02
EP1808569B1 (en) 2010-07-28
ES2349789T3 (en) 2011-01-11
BRPI0416064A (en) 2007-01-02
NO20062254L (en) 2006-07-28
US7032691B2 (en) 2006-04-25
NO338633B1 (en) 2016-09-19
EP1700000B1 (en) 2008-04-23
AU2004286103B2 (en) 2008-02-14
US8176985B2 (en) 2012-05-15
US20050092522A1 (en) 2005-05-05
EP1808569A3 (en) 2009-06-17
WO2005042917A1 (en) 2005-05-12
EP1808569A2 (en) 2007-07-18
DK2161404T3 (en) 2012-12-17
EP2161404A3 (en) 2010-04-14
EG24344A (en) 2009-02-11
US20060191716A1 (en) 2006-08-31
DK1808569T3 (en) 2010-11-08
DK1700000T3 (en) 2008-07-28
AU2004286103A1 (en) 2005-05-12

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